360 lines
12 KiB
C++
360 lines
12 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsClipboard.h"
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#include "gfxDrawable.h"
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#include "gfxUtils.h"
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#include "ImageOps.h"
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#include "imgIContainer.h"
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#include "imgTools.h"
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#include "mozilla/dom/ContentChild.h"
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#include "mozilla/Preferences.h"
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#include "nsClipboardProxy.h"
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#include "nsISupportsPrimitives.h"
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#include "nsComponentManagerUtils.h"
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#include "nsCOMPtr.h"
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#include "nsServiceManagerUtils.h"
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#include "nsStringStream.h"
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#include "nsXULAppAPI.h"
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using namespace mozilla;
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using mozilla::dom::ContentChild;
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#define LOG_TAG "Clipboard"
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#define LOGI(args...) __android_log_print(ANDROID_LOG_INFO, LOG_TAG, ## args)
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#define LOGE(args...) __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, ## args)
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NS_IMPL_ISUPPORTS(nsClipboard, nsIClipboard)
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nsClipboard::nsClipboard()
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: mClipboard(mozilla::MakeUnique<GonkClipboardData>())
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{
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}
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NS_IMETHODIMP
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nsClipboard::SetData(nsITransferable *aTransferable,
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nsIClipboardOwner *anOwner,
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int32_t aWhichClipboard)
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{
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if (aWhichClipboard != kGlobalClipboard) {
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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if (!XRE_IsParentProcess()) {
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// Re-direct to the clipboard proxy.
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RefPtr<nsClipboardProxy> clipboardProxy = new nsClipboardProxy();
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return clipboardProxy->SetData(aTransferable, anOwner, aWhichClipboard);
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}
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// Clear out the clipboard in order to set the new data.
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EmptyClipboard(aWhichClipboard);
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// Use a pref to toggle rich text/non-text support.
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if (Preferences::GetBool("clipboard.plainTextOnly")) {
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nsCOMPtr<nsISupports> clip;
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uint32_t len;
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nsresult rv = aTransferable->GetTransferData(kUnicodeMime,
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getter_AddRefs(clip),
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&len);
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if (NS_FAILED(rv)) {
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return rv;
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}
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nsCOMPtr<nsISupportsString> wideString = do_QueryInterface(clip);
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if (!wideString) {
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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nsAutoString utf16string;
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wideString->GetData(utf16string);
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mClipboard->SetText(utf16string);
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return NS_OK;
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}
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// Get the types of supported flavors.
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nsCOMPtr<nsISupportsArray> flavorList;
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nsresult rv = aTransferable->FlavorsTransferableCanExport(getter_AddRefs(flavorList));
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if (!flavorList || NS_FAILED(rv)) {
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return NS_ERROR_FAILURE;
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}
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uint32_t flavorCount = 0;
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flavorList->Count(&flavorCount);
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bool imageAdded = false;
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for (uint32_t i = 0; i < flavorCount; ++i) {
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nsCOMPtr<nsISupportsCString> currentFlavor = do_QueryElementAt(flavorList, i);
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if (currentFlavor) {
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// MIME type
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nsXPIDLCString flavorStr;
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currentFlavor->ToString(getter_Copies(flavorStr));
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// Clip is the data which will be sent to the clipboard.
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nsCOMPtr<nsISupports> clip;
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uint32_t len;
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if (flavorStr.EqualsLiteral(kUnicodeMime)) {
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// text/plain
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rv = aTransferable->GetTransferData(flavorStr, getter_AddRefs(clip), &len);
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nsCOMPtr<nsISupportsString> wideString = do_QueryInterface(clip);
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if (!wideString || NS_FAILED(rv)) {
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continue;
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}
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nsAutoString utf16string;
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wideString->GetData(utf16string);
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mClipboard->SetText(utf16string);
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} else if (flavorStr.EqualsLiteral(kHTMLMime)) {
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// text/html
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rv = aTransferable->GetTransferData(flavorStr, getter_AddRefs(clip), &len);
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nsCOMPtr<nsISupportsString> wideString = do_QueryInterface(clip);
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if (!wideString || NS_FAILED(rv)) {
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continue;
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}
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nsAutoString utf16string;
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wideString->GetData(utf16string);
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mClipboard->SetHTML(utf16string);
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} else if (!imageAdded && // image is added only once to the clipboard.
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(flavorStr.EqualsLiteral(kNativeImageMime) ||
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flavorStr.EqualsLiteral(kPNGImageMime) ||
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flavorStr.EqualsLiteral(kJPEGImageMime) ||
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flavorStr.EqualsLiteral(kJPGImageMime))) {
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// image/[png|jpeg|jpg] or application/x-moz-nativeimage
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// Look through our transfer data for the image.
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static const char* const imageMimeTypes[] = {
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kNativeImageMime, kPNGImageMime, kJPEGImageMime, kJPGImageMime };
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nsCOMPtr<nsISupportsInterfacePointer> imgPtr;
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for (uint32_t i = 0; !imgPtr && i < ArrayLength(imageMimeTypes); ++i) {
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aTransferable->GetTransferData(imageMimeTypes[i], getter_AddRefs(clip), &len);
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imgPtr = do_QueryInterface(clip);
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}
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if (!imgPtr) {
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continue;
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}
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nsCOMPtr<nsISupports> imageData;
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imgPtr->GetData(getter_AddRefs(imageData));
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nsCOMPtr<imgIContainer> image(do_QueryInterface(imageData));
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if (!image) {
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continue;
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}
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RefPtr<gfx::SourceSurface> surface =
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image->GetFrame(imgIContainer::FRAME_CURRENT,
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imgIContainer::FLAG_SYNC_DECODE);
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if (!surface) {
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continue;
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}
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RefPtr<gfx::DataSourceSurface> dataSurface;
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if (surface->GetFormat() == gfx::SurfaceFormat::B8G8R8A8) {
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dataSurface = surface->GetDataSurface();
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} else {
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// Convert format to SurfaceFormat::B8G8R8A8.
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dataSurface = gfxUtils::CopySurfaceToDataSourceSurfaceWithFormat(surface, gfx::SurfaceFormat::B8G8R8A8);
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}
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mClipboard->SetImage(dataSurface);
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imageAdded = true;
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}
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}
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsClipboard::GetData(nsITransferable *aTransferable,
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int32_t aWhichClipboard)
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{
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if (aWhichClipboard != kGlobalClipboard) {
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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if (!XRE_IsParentProcess()) {
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// Re-direct to the clipboard proxy.
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RefPtr<nsClipboardProxy> clipboardProxy = new nsClipboardProxy();
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return clipboardProxy->GetData(aTransferable, aWhichClipboard);
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}
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// Use a pref to toggle rich text/non-text support.
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if (Preferences::GetBool("clipboard.plainTextOnly")) {
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nsresult rv;
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nsCOMPtr<nsISupportsString> dataWrapper =
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do_CreateInstance(NS_SUPPORTS_STRING_CONTRACTID, &rv);
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rv = dataWrapper->SetData(mClipboard->GetText());
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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nsCOMPtr<nsISupports> genericDataWrapper = do_QueryInterface(dataWrapper);
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uint32_t len = mClipboard->GetText().Length() * sizeof(char16_t);
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rv = aTransferable->SetTransferData(kUnicodeMime, genericDataWrapper, len);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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return NS_OK;
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}
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// Get flavor list that includes all acceptable flavors (including
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// ones obtained through conversion).
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// Note: We don't need to call nsITransferable::AddDataFlavor here
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// because ContentParent already did.
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nsCOMPtr<nsISupportsArray> flavorList;
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nsresult rv = aTransferable->FlavorsTransferableCanImport(getter_AddRefs(flavorList));
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if (!flavorList || NS_FAILED(rv)) {
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return NS_ERROR_FAILURE;
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}
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// Walk through flavors and see which flavor matches the one being pasted.
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uint32_t flavorCount;
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flavorList->Count(&flavorCount);
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for (uint32_t i = 0; i < flavorCount; ++i) {
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nsCOMPtr<nsISupportsCString> currentFlavor = do_QueryElementAt(flavorList, i);
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if (currentFlavor) {
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// flavorStr is the mime type.
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nsXPIDLCString flavorStr;
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currentFlavor->ToString(getter_Copies(flavorStr));
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// text/plain, text/Unicode
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if (flavorStr.EqualsLiteral(kUnicodeMime) && mClipboard->HasText()) {
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nsresult rv;
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nsCOMPtr<nsISupportsString> dataWrapper = do_CreateInstance(NS_SUPPORTS_STRING_CONTRACTID, &rv);
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rv = dataWrapper->SetData(mClipboard->GetText());
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if (NS_WARN_IF(NS_FAILED(rv))) {
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continue;
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}
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nsCOMPtr<nsISupports> genericDataWrapper = do_QueryInterface(dataWrapper);
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uint32_t len = mClipboard->GetText().Length() * sizeof(char16_t);
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rv = aTransferable->SetTransferData(flavorStr, genericDataWrapper, len);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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continue;
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}
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break;
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}
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// text/html
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if (flavorStr.EqualsLiteral(kHTMLMime) && mClipboard->HasHTML()) {
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nsresult rv;
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nsCOMPtr<nsISupportsString> dataWrapper = do_CreateInstance(NS_SUPPORTS_STRING_CONTRACTID, &rv);
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rv = dataWrapper->SetData(mClipboard->GetHTML());
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if (NS_WARN_IF(NS_FAILED(rv))) {
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continue;
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}
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nsCOMPtr<nsISupports> genericDataWrapper = do_QueryInterface(dataWrapper);
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uint32_t len = mClipboard->GetHTML().Length() * sizeof(char16_t);
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rv = aTransferable->SetTransferData(flavorStr, genericDataWrapper, len);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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continue;
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}
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break;
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}
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// image/[png|jpeg|jpg]
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if ((flavorStr.EqualsLiteral(kPNGImageMime) ||
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flavorStr.EqualsLiteral(kJPEGImageMime) ||
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flavorStr.EqualsLiteral(kJPGImageMime)) &&
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mClipboard->HasImage() ) {
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// Get image buffer from clipboard.
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RefPtr<gfx::DataSourceSurface> image = mClipboard->GetImage();
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// Encode according to MIME type.
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RefPtr<gfxDrawable> drawable = new gfxSurfaceDrawable(image, image->GetSize());
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nsCOMPtr<imgIContainer> imageContainer(image::ImageOps::CreateFromDrawable(drawable));
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nsCOMPtr<imgITools> imgTool = do_GetService(NS_IMGTOOLS_CID);
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nsCOMPtr<nsIInputStream> byteStream;
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imgTool->EncodeImage(imageContainer, flavorStr, EmptyString(), getter_AddRefs(byteStream));
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// Set transferable.
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nsresult rv = aTransferable->SetTransferData(flavorStr,
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byteStream,
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sizeof(nsIInputStream*));
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if (NS_WARN_IF(NS_FAILED(rv))) {
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continue;
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}
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break;
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}
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}
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsClipboard::EmptyClipboard(int32_t aWhichClipboard)
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{
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if (aWhichClipboard != kGlobalClipboard) {
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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if (XRE_IsParentProcess()) {
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mClipboard->Clear();
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} else {
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ContentChild::GetSingleton()->SendEmptyClipboard(aWhichClipboard);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsClipboard::HasDataMatchingFlavors(const char **aFlavorList,
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uint32_t aLength, int32_t aWhichClipboard,
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bool *aHasType)
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{
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*aHasType = false;
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if (aWhichClipboard != kGlobalClipboard) {
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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if (XRE_IsParentProcess()) {
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// Retrieve the union of all aHasType in aFlavorList
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for (uint32_t i = 0; i < aLength; ++i) {
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const char *flavor = aFlavorList[i];
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if (!flavor) {
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continue;
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}
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if (!strcmp(flavor, kUnicodeMime) && mClipboard->HasText()) {
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*aHasType = true;
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} else if (!strcmp(flavor, kHTMLMime) && mClipboard->HasHTML()) {
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*aHasType = true;
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} else if (!strcmp(flavor, kJPEGImageMime) ||
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!strcmp(flavor, kJPGImageMime) ||
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!strcmp(flavor, kPNGImageMime)) {
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// We will encode the image into any format you want, so we don't
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// need to check each specific format
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if (mClipboard->HasImage()) {
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*aHasType = true;
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}
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}
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}
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} else {
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RefPtr<nsClipboardProxy> clipboardProxy = new nsClipboardProxy();
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return clipboardProxy->HasDataMatchingFlavors(aFlavorList, aLength, aWhichClipboard, aHasType);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsClipboard::SupportsSelectionClipboard(bool *aIsSupported)
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{
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*aIsSupported = false;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsClipboard::SupportsFindClipboard(bool* _retval)
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{
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NS_ENSURE_ARG_POINTER(_retval);
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*_retval = false;
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return NS_OK;
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}
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